Biotechnology and investment entrepreneur Arthur Altschul Jr. and Rula Jebreal are engaged, we can exclusively reveal. We hear wealthy Altschul, who is the son of former Goldman Sachs partner, philanthropist and art collector Arthur Altschul, proposed to journalist and screenwriter Jebreal in late April. Page Six reported in March that the two were dating, having been spotted together at several restaurants and events. This will be the first marriage for Altschul. Jebreal previously dated Julian Schnabel for five years, before splitting in 2011. She also has a teenage daughter from a previous relationship. Reached for comment, Altschul said: “We are engaged. We’re very much in love, and look forward to being married.”